Don't see that too often...
Art:
Excellent, the simple Game Boyish pixel art works. I liked what you did with the intro cut scene. While it only black white and grey (like a gameboy) and the characters were stiff the drawing was very good. My only complaint is with the use of the blur filters which take away from the pixel effect by distorting the pixels.
Audio:
Great, it was mostly a simple 8-bit operation (for music and sound effects) which fit well with the visuals. My only complaint is with that laughing music which didn't seem to fit in with the 8-bit sounds.
Animation:
Very good except for the use of filters. As said before, the blur filters seem to take away from the pixel effect.
Overall:
Excellent, but work on consistency.